The microstructure, texture and mechanical properties of extruded Mg–5.3Zn–0.2Ca–0.5Ce (wt%) alloy

Effect of Y and Ce additions on microstructure and mechanical properties of Mg–Zn–Zr alloys

“…This enrichment would result in the expansion of a constitutional supercooled area in front of the solid-liquid interface, accelerating nucleation rate and restricting dendrite growth [14][15][16]. Meanwhile, the initially formed Y and Ce containing intermetallic compounds with high melting points dispersed at grain boundaries and led to the expansion of a constitutional undercooled area in front of the solid-liquid interface, which restricted grain growth [6,17,18]. The optical micrographs of extruded alloys are shown in Fig.…”

“…One of the typical approaches to improve the mechanical properties of Mg alloys is micro-alloying [5]. The addition of proper alloying elements in Mg alloys can reduce grain size and modify the morphology, structure and orientation of precipitates, consequently influencing the mechanical properties of alloys [6].…”

“…Researchers have found that the addition of Ce to Mg-Zn alloys could increase the incipient temperature and weaken basal the texture component [9]. Double micro-alloying addition can reportedly provide further improvement in the mechanical properties of Mg-Zn system [6,10]. To date, several investigators have reported on Mg-Zn (-Zr) alloys added with Y and Ce additions [11][12][13].…”

Development of high-strength, low-cost wrought Mg–2.5mass% Zn alloy through micro-alloying with Ca and La

“…A very small amount of Ce added to Mg leads to texture modification and grain refinement [9,28]. In our previous study, a low-cost high-strength Mg-5.3Zn-0.2Ca-0.5Ce alloy with yield strength (YS) 268 MPa and the elongation to fracture 16.6% was developed through the conventional thermomechanical process [29]. Mg-Zn alloys containing trace La are rarely reported, however, La is very likely to refine microstructure and stimulate the precipitation of Mg-Zn alloys as Ce does since they are very similar in chemical and physical characteristics [27].…”

Effect of local strains on the texture and mechanical properties of AZ31 magnesium alloy produced by continuous variable cross-section direct extrusion (CVCDE)

“…Therefore, many researchers and scholars have paid their attentions to Severe Plastic Deformation (SPD) techniques [1][2][3], and tried to improve the performance of magnesium alloys. Generally, the main factors that have a significant impact on mechanical properties of extruded magnesium alloys are grain size, texture type and intensity [4], and the precipitated second phase particles [5]. Generally, grain size, texture type and intensity [4], and the precipitated second phase particles [5] are the main factors that have a significant impact on mechanical properties of extruded magnesium alloys.…”